Reinforced concrete stave shells, tanks
The site is designed primarily for the storage of water produced in our spas, but other liquids can be stored in them, After finding an appropriate insulation. The pools are made of 4 m diameter, In addition to the required heights. Made of reinforced concrete shell structure of both ground and ground.
They are made of the same membrane shell in the pictures you can see vb. Shell staves, arches, even basements can also.